Product Description
The Mobilarma 700 Series contains three premium performance rust preventives
that cover a range of applications including storage and inter-operational
activities. The Mobilarma 777 and 778 are intended for protection cold-rolled
sheet and coiled steel in the metal industry. Mobilarma 798 is intended for
the lubrication and rust protection of wire rope in industrial, construction,
mining and marine applications. The Mobilarma 700 Series products exhibit
excellent water displacing properties and form thin tenacious films that
protect surfaces even under severe conditions that include high moisture
levels and exposure to acid or corrosive fumes.
The Mobilarma
777 and 778 form wet, oily and extremely thin barrier films that are not tacky
so that they will not attract dirt or other foreign matter. They will protect
sheet and coiled steel for up to twelve months, even under severe conditions
that include variations in humidity and exposure to acid fumes that might be
found in the vicinity of pickling operations.
Mobilarma 798
forms a grease-like film that protects wire ropes from corrosion tendencies of
salt spray and moisture- laden atmospheres. It is effective throughout the
extremes of temperature that may be encountered at sea and gives good
protection against mild acids. It is pliable at –35oC and will not drip at
60oC. It resists throw-off in high-speed service and adheres without being
tacky or stringy. The film is self-healing and does not chip.
Features and Benefits
Mobilarma 777 and 778 provide an effective and cost efficient means of
protecting cold-rolled sheet and coiled steel prior to processing and during
storage. They provide extended protection, even under severe storage
conditions resulting in less reject and scrapped materials.
Mobilarma 798 works well between the strands of wire rope providing excellent
lubrication as well as protective films. These characteristics reduce wear and
improve life of the wire ropes as well as minimize maintenance costs
associated with their use. It is compatible with other wire rope core
impregnating materials that may have been applied during manufacture. It is
easy to apply and economical to use.
Features
|
Advantages and Potential Benefits
|
|
Effective rust and corrosion protection
|
Less waste and lower costs
|
|
Easy application
|
Less waste and lower costs
|
|
Economical to use
|
Good coverage and protection with thin films
|
Applications
Mobilarma 777 and 778 are recommended for use as:
- Protective coatings for cold-rolled sheet and coiled steel
- Coatings for precision machined parts and instruments for storage
- A die lubricant (Mobilarma 778) in some light duty pressing operation
Mobilarma 798 is recommended for use for:
- Lubrication and preservation of strands and running ropes
- Impregnation of steel wire ropes during manufacture
Back to Top
Typical Properties

Mobilarma 700 Series
| 
777
| 
778
| 
798
|
| Viscosity, ASTM D 445 | | | |
| cSt @ 40ºC | 13 | 21 | |
| cSt @ 100ºC | | | 23.1 |
| Dropping point, ASTM D 2265, oC | | | 63 |
| Pour Point, ºC, ASTM D 97 | -6 | -3 | |
| Flash Point, ºC, ASTM D 92 | 120 | 190 | 238 |
| Density @15.6 ºC, calculated, lbs/gal | | | 7.36 |
| Specific gravity, ASTM D 1298 | 0.860 | 0.880 | |
Back to Top
Health and Safety
Based on available information, this product is not expected to produce
adverse effects on health when used for the intended application and the
recommendations provided in the Material Safety Data Sheet (MSDS) are
followed. MSDS's are available upon request through your sales contract
office, or via the Internet. This product should not be used for purposes
other than its intended use. If disposing of used product, take care to
protect the environment.
The Mobil logotype, the Pegasus design, and Mobilarma are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
|